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zephyr/drivers/pinmux/stm32/pinmux_stm32wbx.h
Francois Ramu 01e9983142 drivers: pinmux: stm32wb: use a pull-down for SPI SCK pin 
Like stm32 L4 does,
when the STM32WBx SoC goes into STOP mode, the SPI device is disabled.
This cause the pins to not be drived anymore (i.e. they are floating)
except through their pull-up or pull-down.

From the logical point of view, the NSS pin is held high by a pull-up
so it's not a problem if the other pins are floating. However those pins
are floating input for the slaves, which increase their power
consumption.

The solution is to hold the state of the pins through a pull-up or a
pull-down. This is already done for the NSS and MOSI pins, but not for
SCK. Fix that by using pull-down on the SCK pin the same way it is
already done for the MOSI pin.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
2020-05-07 23:00:32 -05:00

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/*
* Copyright (c) 2018 Linaro Limited
* Copyright (c) 2019 Centaur Analytics, Inc
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef _STM32WBX_PINMUX_H_
#define _STM32WBX_PINMUX_H_
/**
* @file Header for STM32WBX pin multiplexing helper
*/
/* Port A */
/* ADC1 */
#define STM32WBX_PINMUX_FUNC_PA0_ADC1_IN5 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA1_ADC1_IN6 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA2_ADC1_IN7 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA3_ADC1_IN8 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA4_ADC1_IN9 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA5_ADC1_IN10 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA6_ADC1_IN11 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA7_ADC1_IN12 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA8_ADC1_IN15 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA9_ADC1_IN16 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PA2_LPUART1_TX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PA3_LPUART1_RX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA9_USART1_TX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PA10_USART1_RX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUPDR_NO_PULL)
#define STM32WBX_PINMUX_FUNC_PA12_LPUART1_RX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)
/* SPI1 */
#define STM32WBX_PINMUX_FUNC_PA1_SPI1_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA4_SPI1_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PA5_SPI1_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA6_SPI1_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA7_SPI1_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA11_SPI1_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA12_SPI1_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PA15_SPI1_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
/* SPI2 */
#define STM32WBX_PINMUX_FUNC_PA9_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
/* Timer 1 */
#define STM32WBX_PINMUX_FUNC_PA8_TMR1_CH1 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA9_TMR1_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA10_TMR1_CH3 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA11_TMR1_CH4 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
/* Timer 2 */
#define STM32WBX_PINMUX_FUNC_PA0_TMR2_CH1 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA1_TMR2_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA2_TMR2_CH3 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA3_TMR2_CH4 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA5_TMR2_CH1 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA15_TMR2_CH1 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
/* Timer 16 */
#define STM32WBX_PINMUX_FUNC_PA6_TMR16_CH1 \
(STM32_PINMUX_ALT_FUNC_14 | STM32_PUSHPULL_NOPULL)
/* Timer 17 */
#define STM32WBX_PINMUX_FUNC_PA7_TMR17_CH1 \
(STM32_PINMUX_ALT_FUNC_14 | STM32_PUSHPULL_NOPULL)
/* USB */
#if CONFIG_SOC_STM32WB55XX
#define STM32WBX_PINMUX_FUNC_PA11_USB_DM \
(STM32_PINMUX_ALT_FUNC_10 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PA12_USB_DP \
(STM32_PINMUX_ALT_FUNC_10 | STM32_PUSHPULL_NOPULL)
#endif
/* Port B */
#define STM32WBX_PINMUX_FUNC_PB5_LPUART1_TX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB6_USART1_TX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB7_USART1_RX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUPDR_NO_PULL)
#define STM32WBX_PINMUX_FUNC_PB8_I2C1_SCL \
(STM32_PINMUX_ALT_FUNC_4 | STM32_OPENDRAIN_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB9_I2C1_SDA \
(STM32_PINMUX_ALT_FUNC_4 | STM32_OPENDRAIN_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB10_LPUART1_RX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PB11_LPUART1_TX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_PULLUP)
/* SPI1 */
#define STM32WBX_PINMUX_FUNC_PB2_SPI1_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB3_SPI1_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PB4_SPI1_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PB5_SPI1_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
/* SPI2 */
#define STM32WBX_PINMUX_FUNC_PB9_SPI2_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB10_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PB12_SPI2_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PB13_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PB14_SPI2_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PB15_SPI2_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
/* Timer 2 */
#define STM32WBX_PINMUX_FUNC_PB3_TMR2_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PB10_TMR2_CH3 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PB11_TMR2_CH4 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
/* Timer 16 */
#define STM32WBX_PINMUX_FUNC_PB8_TMR16_CH1 \
(STM32_PINMUX_ALT_FUNC_14 | STM32_PUSHPULL_NOPULL)
/* Timer 17 */
#define STM32WBX_PINMUX_FUNC_PB9_TMR17_CH1 \
(STM32_PINMUX_ALT_FUNC_14 | STM32_PUSHPULL_NOPULL)
/* Port C */
/* ADC1 */
#define STM32WBX_PINMUX_FUNC_PC0_ADC1_IN1 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC1_ADC1_IN2 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC2_ADC1_IN3 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC3_ADC1_IN4 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC4_ADC1_IN13 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC5_ADC1_IN14 STM32_MODER_ANALOG_MODE
#define STM32WBX_PINMUX_FUNC_PC0_LPUART1_RX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PC1_LPUART1_TX \
(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PC0_I2C3_SCL \
(STM32_PINMUX_ALT_FUNC_4 | STM32_OPENDRAIN_PULLUP)
#define STM32WBX_PINMUX_FUNC_PC1_I2C3_SDA \
(STM32_PINMUX_ALT_FUNC_4 | STM32_OPENDRAIN_PULLUP)
/* SPI2 */
#define STM32WBX_PINMUX_FUNC_PC1_SPI2_MOSI \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PC2_SPI2_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PC3_SPI2_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
/* Port D */
/* SPI2 */
#define STM32WBX_PINMUX_FUNC_PD0_SPI2_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32WBX_PINMUX_FUNC_PD1_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PD3_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PD3_SPI2_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32WBX_PINMUX_FUNC_PD4_SPI2_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
/* Timer 1 */
#define STM32WBX_PINMUX_FUNC_PD14_TMR1_CH1 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32WBX_PINMUX_FUNC_PD15_TMR1_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
/* Port E */
/* Port H */
#endif /* _STM32WBX_PINMUX_H_ */
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